So I know it's a 14 bolt full floater rear axle. I found some letters and numbers stamped on the tube. Passenger side, top of the tube it reads " BMH G1611" I can't for the life of me decode this, I searched online and nothing. I was told it has 4:56 gears. Anyone have ideas? Also found "3377323" on the front of the housing. I am trying to figure out what year it is.